{"id":2392,"date":"2025-08-25T07:07:42","date_gmt":"2025-08-25T07:07:42","guid":{"rendered":"https:\/\/www.lauramak.com\/?post_type=product&p=2392"},"modified":"2025-09-19T06:14:25","modified_gmt":"2025-09-19T06:14:25","slug":"three-phase-dry-type-low-voltage-isolation-transformer","status":"publish","type":"product","link":"https:\/\/www.lauramak.com\/kk\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/","title":{"rendered":"Three Phase Dry Type Low-Voltage Isolation Electrical Transformer SG500va-500kva"},"content":{"rendered":"

Type designation<\/strong><\/h2>\n\n\n\n
MODEL: \u25a1SG\u25a1<\/td><\/tr>
\u25a1<\/td>None: lsolation, Q: Autocoupling<\/td><\/tr>
S<\/td>S: three-phase<\/td><\/tr>
G<\/td>Dry-type transformer<\/td><\/tr>
\u25a1<\/td>Power KVA<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Main technical parameter<\/strong><\/h2>\n\n\n\n
Model<\/td>SG-500VA~500KVA<\/strong><\/td><\/tr>
Phase<\/td>Three phase<\/td><\/tr>
Input voltage<\/td>Default 380V 660V 440V 220V (customizable voltage)<\/td><\/tr>
Output voltage<\/td>Default 220V 1140V 690V 660V 440V 415V 400V 380V 220V 110V (customizable voltage)<\/td><\/tr>
Voltage Accuracy<\/td>\u00b11%<\/td><\/tr>
Voltage variation rate<\/td>\u22641.5%<\/td><\/tr>
Efficiency<\/td>Inductive (Isolated) \u226599%<\/td><\/tr>
Resistance to Electricity<\/td>1500V\/min<\/td><\/tr>
Overload capacity<\/td>Overloading is not recommended<\/td><\/tr>
Ambient temperature<\/td>-10\u00b0C~+ 40\u00b0C<\/td><\/tr>
Waveform Distortion<\/td>No additional wave form distortion<\/td><\/tr>
Cooling method<\/td>Dry air-cooled<\/td><\/tr>
Connection method<\/td>D\/Y Y\/Y customizable<\/td><\/tr>
Insulating Class<\/td>Class F<\/td><\/tr>
Power<\/td>8KVA<\/td>10KVA<\/td>15KVA<\/td>20KVA<\/td>30KVA<\/td><\/tr>
Size(mm)   L*W*H<\/td>420*330*460<\/td>460*350*520<\/td>490*390*520<\/td>520*430*530<\/td>520*430*530<\/td><\/tr>
Power<\/td>50KVA<\/td>60KVA<\/td>80KVA<\/td>100KVA<\/td>150KVA<\/td><\/tr>
Size(mm)   L*W*H<\/td>750*480*780<\/td>750*480*780<\/td>800*500*800<\/td>800*500*800<\/td>800*600*800<\/td><\/tr>
Power<\/td>200KVA<\/td>250KVA<\/td>300KVA<\/td>400KVA<\/td>500KVA<\/td><\/tr>
Size(mm)   L*W*H<\/td>850*650*850<\/td>850*650*850<\/td>850*650*850<\/td>1200*1000*1200<\/td>1200*1000*1200<\/td><\/tr>
The size and weight vary depending on the voltage range, and are subject to the customized actual product.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Key Applications<\/h2>\n\n\n\n

The Three Phase Dry Type Low-Voltage Isolation Transformer is ideal for:<\/p>\n\n\n\n

    \n
  • Industrial automation \u2192 CNC machines, production lines, motors, pumps<\/li>\n\n\n\n
  • Electrical drive control \u2192 Inverters, servo systems, variable frequency drives<\/li>\n\n\n\n
  • Power distribution systems \u2192 Low-voltage switchgear, MCC panels, PDU cabinets<\/li>\n\n\n\n
  • Renewable energy systems \u2192 Solar, wind, and battery storage integration<\/li>\n\n\n\n
  • Sensitive electronics \u2192 Data centers, laboratories, medical devices<\/li>\n\n\n\n
  • Commercial facilities \u2192 Malls, airports, stadiums, hospitals, and office buildings<\/li>\n<\/ul>\n\n\n\n

    Why Choose Our Dry Type Isolation Transformer?<\/h2>\n\n\n\n

    Compared to conventional transformers, our Three Phase Dry Type Low-Voltage Transformers offer:<\/p>\n\n\n\n

      \n
    1. Higher Safety & Reliability<\/strong><\/li>\n<\/ol>\n\n\n\n

      Non-flammable insulation materials
      No risk of oil leakage or fire hazards
      Better protection against short circuits and overloads<\/p>\n\n\n\n

        \n
      1. Better Power Quality<\/strong><\/li>\n<\/ol>\n\n\n\n

        Reduces noise, harmonic distortion, and electromagnetic interference
        Provides stable voltage and cleaner power output<\/p>\n\n\n\n

          \n
        1. Low Maintenance & Eco-Friendly<\/strong><\/li>\n<\/ol>\n\n\n\n

          No oil replacement required
          Environmentally friendly materials and design
          Compact, lightweight, and easy to install<\/p>\n\n\n\n

          Selection Guide<\/h2>\n\n\n\n

          To choose the right Three Phase Dry Type Isolation Transformer, consider:<\/p>\n\n\n\n

            \n
          • Rated Power (kVA) \u2192 Select a transformer 20\u201330% above your maximum load to handle peaks safely.<\/li>\n<\/ul>\n\n\n\n
              \n
            • Input & Output Voltage \u2192 Verify compatibility with your equipment and grid voltage.<\/li>\n<\/ul>\n\n\n\n
                \n
              • Load Type \u2192 For sensitive electronics, choose isolation transformers for better noise suppression.<\/li>\n<\/ul>\n\n\n\n
                  \n
                • Installation Environment \u2192 For dusty, humid, or confined areas, dry type transformers are the safest choice.<\/li>\n<\/ul>\n\n\n\n

                  FAQ<\/h2>\n\n\n\n

                  Q1: What is the difference between a dry type transformer and an oil-filled transformer?<\/strong>
                  A: Dry type transformers use air or epoxy resin insulation and are safer, environmentally friendly, and easier to maintain, while oil-filled transformers require regular oil monitoring and are more suited for outdoor, high-capacity installations.<\/p>\n\n\n\n

                  Q2: Why use an isolation transformer instead of a standard low-voltage transformer?<\/strong>
                  A: An isolation transformer separates the input and output circuits, providing better protection against voltage spikes, noise interference, and grounding issues, making it ideal for precision equipment and sensitive electronics.<\/p>\n\n\n\n

                  Q3: What is the expected service life of this transformer?<\/strong>
                  A: With proper installation and maintenance, the Three Phase Dry Type Isolation Transformer can operate reliably for 20\u201330 years.<\/p>","protected":false},"excerpt":{"rendered":"

                  Type designation MODEL: \u25a1SG\u25a1 \u25a1 None: lsolation, Q: Autocoupling S S: three-phase G Dry-type transformer \u25a1 Power KVA Main technical parameter Model SG-500VA~500KVA Phase Three phase Input voltage Default 380V 660V 440V 220V (customizable voltage) Output voltage Default 220V 1140V 690V 660V 440V 415V 400V 380V 220V 110V (customizable voltage) Voltage Accuracy \u00b11% Voltage variation rate \u22641.5% Efficiency Inductive (Isolated) \u226599% Resistance to Electricity 1500V\/min Overload capacity Overloading is not recommended Ambient temperature -10\u00b0C~+ 40\u00b0C Waveform Distortion […]<\/p>","protected":false},"featured_media":2399,"parent":0,"menu_order":0,"template":"","tags":[],"product-categories":[59,58],"class_list":["post-2392","product","type-product","status-publish","has-post-thumbnail","hentry","product-categories-isolation-transformer","product-categories-low-voltage-transformer"],"acf":[],"yoast_head":"\nThree Phase Dry Type Low-Voltage Isolation Transformer Manufacturer - SUNWAY<\/title>\n<meta name=\"description\" content=\"Discover ZHENGXI Three Phase Dry Type Low-Voltage Isolation Transformer (10kVA\u2013100kVA), designed for reliable power distribution, safety, and energy efficiency. Ideal for industrial, commercial, and sensitive equipment applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.lauramak.com\/kk\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Three Phase Dry Type Low-Voltage Isolation Transformer Manufacturer - SUNWAY\" \/>\n<meta property=\"og:description\" content=\"Discover ZHENGXI Three Phase Dry Type Low-Voltage Isolation Transformer (10kVA\u2013100kVA), designed for reliable power distribution, safety, and energy efficiency. Ideal for industrial, commercial, and sensitive equipment applications.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.lauramak.com\/kk\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/\" \/>\n<meta property=\"og:site_name\" content=\"SUNWAY\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-19T06:14:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/08\/Three-Phase-Dry-Type-Low-Voltage-Isolation-Electrical-Transformer-SG500va.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 \u043c\u0438\u043d\u0443\u0442\u044b\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/\",\"url\":\"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/\",\"name\":\"Three Phase Dry Type Low-Voltage Isolation Transformer Manufacturer - SUNWAY\",\"isPartOf\":{\"@id\":\"https:\/\/www.lauramak.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/08\/Three-Phase-Dry-Type-Low-Voltage-Isolation-Electrical-Transformer-SG500va.webp\",\"datePublished\":\"2025-08-25T07:07:42+00:00\",\"dateModified\":\"2025-09-19T06:14:25+00:00\",\"description\":\"Discover ZHENGXI Three Phase Dry Type Low-Voltage Isolation Transformer (10kVA\u2013100kVA), designed for reliable power distribution, safety, and energy efficiency. Ideal for industrial, commercial, and sensitive equipment applications.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#breadcrumb\"},\"inLanguage\":\"ru-RU\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ru-RU\",\"@id\":\"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#primaryimage\",\"url\":\"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/08\/Three-Phase-Dry-Type-Low-Voltage-Isolation-Electrical-Transformer-SG500va.webp\",\"contentUrl\":\"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/08\/Three-Phase-Dry-Type-Low-Voltage-Isolation-Electrical-Transformer-SG500va.webp\",\"width\":800,\"height\":800,\"caption\":\"Three Phase Dry Type Low-Voltage Isolation Electrical Transformer SG500va\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.lauramak.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Products\",\"item\":\"https:\/\/www.lauramak.com\/product\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Three Phase Dry Type Low-Voltage Isolation Electrical Transformer SG500va-500kva\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.lauramak.com\/#website\",\"url\":\"https:\/\/www.lauramak.com\/\",\"name\":\"SUNWAY\",\"description\":\"ZHENGXI GROUP\u2018 Subsidiary\",\"publisher\":{\"@id\":\"https:\/\/www.lauramak.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.lauramak.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ru-RU\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.lauramak.com\/#organization\",\"name\":\"SUNWAY\",\"url\":\"https:\/\/www.lauramak.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ru-RU\",\"@id\":\"https:\/\/www.lauramak.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/07\/sunway-logo.webp\",\"contentUrl\":\"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/07\/sunway-logo.webp\",\"width\":319,\"height\":89,\"caption\":\"SUNWAY\"},\"image\":{\"@id\":\"https:\/\/www.lauramak.com\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Three Phase Dry Type Low-Voltage Isolation Transformer Manufacturer - SUNWAY","description":"Discover ZHENGXI Three Phase Dry Type Low-Voltage Isolation Transformer (10kVA\u2013100kVA), designed for reliable power distribution, safety, and energy efficiency. Ideal for industrial, commercial, and sensitive equipment applications.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.lauramak.com\/kk\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/","og_locale":"en_US","og_type":"article","og_title":"Three Phase Dry Type Low-Voltage Isolation Transformer Manufacturer - SUNWAY","og_description":"Discover ZHENGXI Three Phase Dry Type Low-Voltage Isolation Transformer (10kVA\u2013100kVA), designed for reliable power distribution, safety, and energy efficiency. Ideal for industrial, commercial, and sensitive equipment applications.","og_url":"https:\/\/www.lauramak.com\/kk\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/","og_site_name":"SUNWAY","article_modified_time":"2025-09-19T06:14:25+00:00","og_image":[{"width":800,"height":800,"url":"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/08\/Three-Phase-Dry-Type-Low-Voltage-Isolation-Electrical-Transformer-SG500va.webp","type":"image\/webp"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"3 \u043c\u0438\u043d\u0443\u0442\u044b"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/","url":"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/","name":"Three Phase Dry Type Low-Voltage Isolation Transformer Manufacturer - SUNWAY","isPartOf":{"@id":"https:\/\/www.lauramak.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#primaryimage"},"image":{"@id":"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#primaryimage"},"thumbnailUrl":"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/08\/Three-Phase-Dry-Type-Low-Voltage-Isolation-Electrical-Transformer-SG500va.webp","datePublished":"2025-08-25T07:07:42+00:00","dateModified":"2025-09-19T06:14:25+00:00","description":"Discover ZHENGXI Three Phase Dry Type Low-Voltage Isolation Transformer (10kVA\u2013100kVA), designed for reliable power distribution, safety, and energy efficiency. Ideal for industrial, commercial, and sensitive equipment applications.","breadcrumb":{"@id":"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#breadcrumb"},"inLanguage":"ru-RU","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/"]}]},{"@type":"ImageObject","inLanguage":"ru-RU","@id":"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#primaryimage","url":"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/08\/Three-Phase-Dry-Type-Low-Voltage-Isolation-Electrical-Transformer-SG500va.webp","contentUrl":"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/08\/Three-Phase-Dry-Type-Low-Voltage-Isolation-Electrical-Transformer-SG500va.webp","width":800,"height":800,"caption":"Three Phase Dry Type Low-Voltage Isolation Electrical Transformer SG500va"},{"@type":"BreadcrumbList","@id":"https:\/\/www.lauramak.com\/product\/three-phase-dry-type-low-voltage-isolation-transformer\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.lauramak.com\/"},{"@type":"ListItem","position":2,"name":"Products","item":"https:\/\/www.lauramak.com\/product\/"},{"@type":"ListItem","position":3,"name":"Three Phase Dry Type Low-Voltage Isolation Electrical Transformer SG500va-500kva"}]},{"@type":"WebSite","@id":"https:\/\/www.lauramak.com\/#website","url":"https:\/\/www.lauramak.com\/","name":"SUNWAY","description":"ZHENGXI GROUP\u2018 Subsidiary","publisher":{"@id":"https:\/\/www.lauramak.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.lauramak.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ru-RU"},{"@type":"Organization","@id":"https:\/\/www.lauramak.com\/#organization","name":"SUNWAY","url":"https:\/\/www.lauramak.com\/","logo":{"@type":"ImageObject","inLanguage":"ru-RU","@id":"https:\/\/www.lauramak.com\/#\/schema\/logo\/image\/","url":"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/07\/sunway-logo.webp","contentUrl":"https:\/\/www.lauramak.com\/wp-content\/uploads\/2025\/07\/sunway-logo.webp","width":319,"height":89,"caption":"SUNWAY"},"image":{"@id":"https:\/\/www.lauramak.com\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.lauramak.com\/kk\/wp-json\/wp\/v2\/product\/2392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lauramak.com\/kk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.lauramak.com\/kk\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":7,"href":"https:\/\/www.lauramak.com\/kk\/wp-json\/wp\/v2\/product\/2392\/revisions"}],"predecessor-version":[{"id":2406,"href":"https:\/\/www.lauramak.com\/kk\/wp-json\/wp\/v2\/product\/2392\/revisions\/2406"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lauramak.com\/kk\/wp-json\/wp\/v2\/media\/2399"}],"wp:attachment":[{"href":"https:\/\/www.lauramak.com\/kk\/wp-json\/wp\/v2\/media?parent=2392"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lauramak.com\/kk\/wp-json\/wp\/v2\/tags?post=2392"},{"taxonomy":"product-categories","embeddable":true,"href":"https:\/\/www.lauramak.com\/kk\/wp-json\/wp\/v2\/product-categories?post=2392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}